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comparison src/share/vm/gc_implementation/g1/g1GCPhaseTimes.hpp @ 22908:c3fcc09c9239

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8074037: Refactor the G1GCPhaseTime logging to make it easier to add new phases Reviewed-by: tschatzl, mgerdin, ecaspole
author brutisso
date Thu, 26 Mar 2015 13:19:32 +0100
parents 7baf47cb97cb
children 3ca53859c3c7
comparison
equal deleted inserted replaced
22907:93a69595b807 22908:c3fcc09c9239
24 24
25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP
27 27
28 #include "memory/allocation.hpp" 28 #include "memory/allocation.hpp"
29 #include "gc_interface/gcCause.hpp" 29
30 30 class LineBuffer;
31 template <class T> 31
32 class WorkerDataArray : public CHeapObj<mtGC> { 32 template <class T> class WorkerDataArray;
33 T* _data;
34 uint _length;
35 const char* _print_format;
36 bool _print_sum;
37
38 NOT_PRODUCT(static const T _uninitialized;)
39
40 // We are caching the sum and average to only have to calculate them once.
41 // This is not done in an MT-safe way. It is intended to allow single
42 // threaded code to call sum() and average() multiple times in any order
43 // without having to worry about the cost.
44 bool _has_new_data;
45 T _sum;
46 double _average;
47
48 public:
49 WorkerDataArray(uint length, const char* print_format, bool print_sum = true) :
50 _length(length), _print_format(print_format), _print_sum(print_sum), _has_new_data(true) {
51 assert(length > 0, "Must have some workers to store data for");
52 _data = NEW_C_HEAP_ARRAY(T, _length, mtGC);
53 }
54
55 ~WorkerDataArray() {
56 FREE_C_HEAP_ARRAY(T, _data, mtGC);
57 }
58
59 void set(uint worker_i, T value) {
60 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
61 assert(_data[worker_i] == (T)-1, err_msg("Overwriting data for worker %d", worker_i));
62 _data[worker_i] = value;
63 _has_new_data = true;
64 }
65
66 T get(uint worker_i) {
67 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
68 assert(_data[worker_i] != (T)-1, err_msg("No data to add to for worker %d", worker_i));
69 return _data[worker_i];
70 }
71
72 void add(uint worker_i, T value) {
73 assert(worker_i < _length, err_msg("Worker %d is greater than max: %d", worker_i, _length));
74 assert(_data[worker_i] != (T)-1, err_msg("No data to add to for worker %d", worker_i));
75 _data[worker_i] += value;
76 _has_new_data = true;
77 }
78
79 double average(){
80 if (_has_new_data) {
81 calculate_totals();
82 }
83 return _average;
84 }
85
86 T sum() {
87 if (_has_new_data) {
88 calculate_totals();
89 }
90 return _sum;
91 }
92
93 void print(int level, const char* title);
94
95 void reset() PRODUCT_RETURN;
96 void verify() PRODUCT_RETURN;
97
98 private:
99
100 void calculate_totals(){
101 _sum = (T)0;
102 for (uint i = 0; i < _length; ++i) {
103 _sum += _data[i];
104 }
105 _average = (double)_sum / (double)_length;
106 _has_new_data = false;
107 }
108 };
109 33
110 class G1GCPhaseTimes : public CHeapObj<mtGC> { 34 class G1GCPhaseTimes : public CHeapObj<mtGC> {
111 35 friend class G1GCParPhasePrinter;
112 private: 36
113 uint _active_gc_threads; 37 uint _active_gc_threads;
114 uint _max_gc_threads; 38 uint _max_gc_threads;
115 39
116 WorkerDataArray<double> _last_gc_worker_start_times_ms; 40 public:
117 WorkerDataArray<double> _last_ext_root_scan_times_ms; 41 enum GCParPhases {
118 WorkerDataArray<double> _last_satb_filtering_times_ms; 42 GCWorkerStart,
119 WorkerDataArray<double> _last_update_rs_times_ms; 43 ExtRootScan,
120 WorkerDataArray<int> _last_update_rs_processed_buffers; 44 SATBFiltering,
121 WorkerDataArray<double> _last_scan_rs_times_ms; 45 UpdateRS,
122 WorkerDataArray<double> _last_strong_code_root_scan_times_ms; 46 ScanRS,
123 WorkerDataArray<double> _last_obj_copy_times_ms; 47 CodeRoots,
124 WorkerDataArray<double> _last_termination_times_ms; 48 ObjCopy,
125 WorkerDataArray<size_t> _last_termination_attempts; 49 Termination,
126 WorkerDataArray<double> _last_gc_worker_end_times_ms; 50 Other,
127 WorkerDataArray<double> _last_gc_worker_times_ms; 51 GCWorkerTotal,
128 WorkerDataArray<double> _last_gc_worker_other_times_ms; 52 GCWorkerEnd,
53 StringDedupQueueFixup,
54 StringDedupTableFixup,
55 RedirtyCards,
56 GCParPhasesSentinel
57 };
58
59 private:
60 // Markers for grouping the phases in the GCPhases enum above
61 static const int GCMainParPhasesLast = GCWorkerEnd;
62 static const int StringDedupPhasesFirst = StringDedupQueueFixup;
63 static const int StringDedupPhasesLast = StringDedupTableFixup;
64
65 WorkerDataArray<double>* _gc_par_phases[GCParPhasesSentinel];
66 WorkerDataArray<size_t>* _update_rs_processed_buffers;
67 WorkerDataArray<size_t>* _termination_attempts;
68 WorkerDataArray<size_t>* _redirtied_cards;
129 69
130 double _cur_collection_par_time_ms; 70 double _cur_collection_par_time_ms;
131 double _cur_collection_code_root_fixup_time_ms; 71 double _cur_collection_code_root_fixup_time_ms;
132 double _cur_strong_code_root_purge_time_ms; 72 double _cur_strong_code_root_purge_time_ms;
133 73
134 double _cur_evac_fail_recalc_used; 74 double _cur_evac_fail_recalc_used;
135 double _cur_evac_fail_restore_remsets; 75 double _cur_evac_fail_restore_remsets;
136 double _cur_evac_fail_remove_self_forwards; 76 double _cur_evac_fail_remove_self_forwards;
137 77
138 double _cur_string_dedup_fixup_time_ms; 78 double _cur_string_dedup_fixup_time_ms;
139 WorkerDataArray<double> _cur_string_dedup_queue_fixup_worker_times_ms;
140 WorkerDataArray<double> _cur_string_dedup_table_fixup_worker_times_ms;
141 79
142 double _cur_clear_ct_time_ms; 80 double _cur_clear_ct_time_ms;
143 double _cur_ref_proc_time_ms; 81 double _cur_ref_proc_time_ms;
144 double _cur_ref_enq_time_ms; 82 double _cur_ref_enq_time_ms;
145 83
147 double _root_region_scan_wait_time_ms; 85 double _root_region_scan_wait_time_ms;
148 86
149 double _recorded_young_cset_choice_time_ms; 87 double _recorded_young_cset_choice_time_ms;
150 double _recorded_non_young_cset_choice_time_ms; 88 double _recorded_non_young_cset_choice_time_ms;
151 89
152 WorkerDataArray<double> _last_redirty_logged_cards_time_ms;
153 WorkerDataArray<size_t> _last_redirty_logged_cards_processed_cards;
154 double _recorded_redirty_logged_cards_time_ms; 90 double _recorded_redirty_logged_cards_time_ms;
155 91
156 double _recorded_young_free_cset_time_ms; 92 double _recorded_young_free_cset_time_ms;
157 double _recorded_non_young_free_cset_time_ms; 93 double _recorded_non_young_free_cset_time_ms;
158 94
169 void print_stats(int level, const char* str, size_t value); 105 void print_stats(int level, const char* str, size_t value);
170 void print_stats(int level, const char* str, double value, uint workers); 106 void print_stats(int level, const char* str, double value, uint workers);
171 107
172 public: 108 public:
173 G1GCPhaseTimes(uint max_gc_threads); 109 G1GCPhaseTimes(uint max_gc_threads);
174 void note_gc_start(uint active_gc_threads); 110 void note_gc_start(uint active_gc_threads, bool mark_in_progress);
175 void note_gc_end(); 111 void note_gc_end();
176 void print(double pause_time_sec); 112 void print(double pause_time_sec);
177 113
178 void record_gc_worker_start_time(uint worker_i, double ms) { 114 // record the time a phase took in seconds
179 _last_gc_worker_start_times_ms.set(worker_i, ms); 115 void record_time_secs(GCParPhases phase, uint worker_i, double secs);
180 } 116
181 117 // add a number of seconds to a phase
182 void record_ext_root_scan_time(uint worker_i, double ms) { 118 void add_time_secs(GCParPhases phase, uint worker_i, double secs);
183 _last_ext_root_scan_times_ms.set(worker_i, ms); 119
184 } 120 void record_thread_work_item(GCParPhases phase, uint worker_i, size_t count);
185 121
186 void record_satb_filtering_time(uint worker_i, double ms) { 122 // return the average time for a phase in milliseconds
187 _last_satb_filtering_times_ms.set(worker_i, ms); 123 double average_time_ms(GCParPhases phase);
188 } 124
189 125 size_t sum_thread_work_items(GCParPhases phase);
190 void record_update_rs_time(uint worker_i, double ms) { 126
191 _last_update_rs_times_ms.set(worker_i, ms); 127 private:
192 } 128 double get_time_ms(GCParPhases phase, uint worker_i);
193 129 double sum_time_ms(GCParPhases phase);
194 void record_update_rs_processed_buffers(uint worker_i, int processed_buffers) { 130 double min_time_ms(GCParPhases phase);
195 _last_update_rs_processed_buffers.set(worker_i, processed_buffers); 131 double max_time_ms(GCParPhases phase);
196 } 132 size_t get_thread_work_item(GCParPhases phase, uint worker_i);
197 133 double average_thread_work_items(GCParPhases phase);
198 void record_scan_rs_time(uint worker_i, double ms) { 134 size_t min_thread_work_items(GCParPhases phase);
199 _last_scan_rs_times_ms.set(worker_i, ms); 135 size_t max_thread_work_items(GCParPhases phase);
200 } 136
201 137 public:
202 void record_strong_code_root_scan_time(uint worker_i, double ms) {
203 _last_strong_code_root_scan_times_ms.set(worker_i, ms);
204 }
205
206 void record_obj_copy_time(uint worker_i, double ms) {
207 _last_obj_copy_times_ms.set(worker_i, ms);
208 }
209
210 void add_obj_copy_time(uint worker_i, double ms) {
211 _last_obj_copy_times_ms.add(worker_i, ms);
212 }
213
214 void record_termination(uint worker_i, double ms, size_t attempts) {
215 _last_termination_times_ms.set(worker_i, ms);
216 _last_termination_attempts.set(worker_i, attempts);
217 }
218
219 void record_gc_worker_end_time(uint worker_i, double ms) {
220 _last_gc_worker_end_times_ms.set(worker_i, ms);
221 }
222 138
223 void record_clear_ct_time(double ms) { 139 void record_clear_ct_time(double ms) {
224 _cur_clear_ct_time_ms = ms; 140 _cur_clear_ct_time_ms = ms;
225 } 141 }
226 142
246 162
247 void record_evac_fail_remove_self_forwards(double ms) { 163 void record_evac_fail_remove_self_forwards(double ms) {
248 _cur_evac_fail_remove_self_forwards = ms; 164 _cur_evac_fail_remove_self_forwards = ms;
249 } 165 }
250 166
251 void note_string_dedup_fixup_start();
252 void note_string_dedup_fixup_end();
253
254 void record_string_dedup_fixup_time(double ms) { 167 void record_string_dedup_fixup_time(double ms) {
255 _cur_string_dedup_fixup_time_ms = ms; 168 _cur_string_dedup_fixup_time_ms = ms;
256 }
257
258 void record_string_dedup_queue_fixup_worker_time(uint worker_id, double ms) {
259 _cur_string_dedup_queue_fixup_worker_times_ms.set(worker_id, ms);
260 }
261
262 void record_string_dedup_table_fixup_worker_time(uint worker_id, double ms) {
263 _cur_string_dedup_table_fixup_worker_times_ms.set(worker_id, ms);
264 } 169 }
265 170
266 void record_ref_proc_time(double ms) { 171 void record_ref_proc_time(double ms) {
267 _cur_ref_proc_time_ms = ms; 172 _cur_ref_proc_time_ms = ms;
268 } 173 }
299 204
300 void record_non_young_cset_choice_time_ms(double time_ms) { 205 void record_non_young_cset_choice_time_ms(double time_ms) {
301 _recorded_non_young_cset_choice_time_ms = time_ms; 206 _recorded_non_young_cset_choice_time_ms = time_ms;
302 } 207 }
303 208
304 void record_redirty_logged_cards_time_ms(uint worker_i, double time_ms) {
305 _last_redirty_logged_cards_time_ms.set(worker_i, time_ms);
306 }
307
308 void record_redirty_logged_cards_processed_cards(uint worker_i, size_t processed_buffers) {
309 _last_redirty_logged_cards_processed_cards.set(worker_i, processed_buffers);
310 }
311
312 void record_redirty_logged_cards_time_ms(double time_ms) { 209 void record_redirty_logged_cards_time_ms(double time_ms) {
313 _recorded_redirty_logged_cards_time_ms = time_ms; 210 _recorded_redirty_logged_cards_time_ms = time_ms;
314 } 211 }
315 212
316 void record_cur_collection_start_sec(double time_ms) { 213 void record_cur_collection_start_sec(double time_ms) {
360 } 257 }
361 258
362 double fast_reclaim_humongous_time_ms() { 259 double fast_reclaim_humongous_time_ms() {
363 return _cur_fast_reclaim_humongous_time_ms; 260 return _cur_fast_reclaim_humongous_time_ms;
364 } 261 }
365
366 double average_last_update_rs_time() {
367 return _last_update_rs_times_ms.average();
368 }
369
370 int sum_last_update_rs_processed_buffers() {
371 return _last_update_rs_processed_buffers.sum();
372 }
373
374 double average_last_scan_rs_time(){
375 return _last_scan_rs_times_ms.average();
376 }
377
378 double average_last_strong_code_root_scan_time(){
379 return _last_strong_code_root_scan_times_ms.average();
380 }
381
382 double average_last_obj_copy_time() {
383 return _last_obj_copy_times_ms.average();
384 }
385
386 double average_last_termination_time() {
387 return _last_termination_times_ms.average();
388 }
389
390 double average_last_ext_root_scan_time() {
391 return _last_ext_root_scan_times_ms.average();
392 }
393
394 double average_last_satb_filtering_times_ms() {
395 return _last_satb_filtering_times_ms.average();
396 }
397 }; 262 };
398 263
264 class G1GCParPhaseTimesTracker : public StackObj {
265 double _start_time;
266 G1GCPhaseTimes::GCParPhases _phase;
267 G1GCPhaseTimes* _phase_times;
268 uint _worker_id;
269 public:
270 G1GCParPhaseTimesTracker(G1GCPhaseTimes* phase_times, G1GCPhaseTimes::GCParPhases phase, uint worker_id);
271 ~G1GCParPhaseTimesTracker();
272 };
273
399 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP 274 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1GCPHASETIMESLOG_HPP